Device for gaging tapering bodies



F. E. VOIGT. DEVICE FOR GAGING TAPERING BODIES.

AP LICATION FILED ILY 14 I919 P 1,339,639. rammed y 11, 1920.

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UNITED STATES PATENT orIu'cE.

FREDERICK E. VOIGT, OF GRAND HAVEN, MICHIGAN.

DEVICE FOR GAGING TAPERING BODIES.

Specification of Letters Patent.

Patented May 11, 1920.

Application filed May 14, 1919. Serial No. 297,041.

for gaging tapering bodies; and its object.

is, generally, to provide a device of that character whereby such bodies may be readily and very accurately gaged; and more particularly, to provide such a device havv ing gaging members interrelatively movable adjustably toward and away from each other and to various angles with each other and having portions in determined spaced relation to their work contacting surfaces respectively, such portions being adapted to be engaged by a measuring instrument; and further, to provide a supplementary gagin member detachably secured'to one of sai swung position; and

members; and further, to provide such a device wherein both gaging members are swingable todif'ferent interrelative angular positions, at least one of them being nicely adjustable to desired swung position; and further, to provide such a device wherein both gaging members are movable toward and away from each other, at least one of them being nicely adjustable to desired further,'to provide such a device one of whose members carries a micrometer adapted to'measure the work.

These and any other objects hereinafter appearing are attained by, and the inven-- tion finds preferable embodiment in, the structure hereinafter particularly described and illustrated by the accompanying drawings, in which Figure 1 is a front view of a device for gaging tapering bodies;

Fig. 2 is a sectional view-of the same taken En planes corresponding to line 2-2 of ig. 1; I

Fig. 3 is a like view of part of the same taken on a plane corresponding to line 3-3 of Fig. 1; and

Fig. 4 shows a portion of a micrometer.

In the embodiment of the invention chosen rotatable,

for illustration by the drawings and for detailed description in the body ofi this specificatiomthe body or frame 1 carries the gaging members, they being the table member 2 and sine bar member 3, between which members the tapering work piece, as 4 indicated in dotted lines, may be gaged. These gaging members are interrelatively movable toward and away from each other and to various angles with each other, to gage work pieces of different diameters and having opposite sides at different angles to each other, said gaging members being adapted to be securely held in such interrelative positions. To these ends, the frame 1 has a slot 5 extending in a direction perpendicular to the work supporting surface 6 of the table 2, in which slot a bolt 7 is slidable but nonits flattened sides 8 slidably and closely engaging the sides of the slot. The sine bar 3 is swingably mounted on this bolt, being turnably secured thereto by the washer 9 and the screw 10, and carrles toward its ends the buttons 12, they beingtermined distance from the work contacting A hand-turnable surface 13 of the sine bar. nut 14 on the threaded portion 15 of the bolt serves to clamp the sine bar against the filling piece 16 positioned between it and the slotted portion of the frame.

The table 2 is swingably mounted on a bolt 17 axially parallel with the bolt 7 and may be nicely adjusted to a desired swung position" thereon by the nuts 18 engaging the upper or lower sides of the slots 19 1n opposite sides of the frame and turnable on the threaded bolts 20 pivotally connected at 21 to the table 2 adjacent its opposite ends respectively. The t'ables bearing 22 on the bolt 17 is slightly enlarged as seen in Fig. 2 so that the table may be not only swung on said bolt but may be moved ashort distance toward or away from the sine bar, to effect more perfectly a desired adjustment. By turning the head 11 of the bolt 17 which is threaded at 40 in the frame 1, the table may be clamped in adjusted osition on the frame. A supplementary tab le member 23 hereinbefore exp ascertained in a similar manner.

may be removably secured, as by the screw 24, on the upper face of the table 2 to accommodate tapered work, as 25 having a shoulder 26, as shown in solid lines in-Fig- 1. The table 2 has an. under surface 27 (clearly seen in Fig. 2) in determined spaced relation to its upper or work supporting surface 6.

It will be seen that a micrometer, (as 28 indicated in dotted lines in Fig. 1) may be applied to the upper side of one of the buttons 12 and to the under surface 27 of the table member, whereby the gage of the work may be ascertained: Or Johansson reference blocks may be applied, for the same purpose, between the under side of the button and the upper surface of the table, as indicated in dotted lines at 29 in Fig. 1.

When the supplementary table 23 is employed, its thickness being uniform and determined, the gage of the work may be The sine bar 3 has toward its ends, and preferably at a determined distance from the axis of its swinging movement, the openings 30 extending therethrough perpendicularly to its work contacting surface 13. A micrometer may be applied to the upper surface 31 of the sine bar (which surface is in parallel determined spaced relation to the sine bars work contacting surface 13), the measuring stem 32 of the micrometer extending in and through said opening and being adapted to be brought into contact with the work. In this manner also the gage of the work may be ascertained.

It will be seen that should the lower edge 13 of the sine bar become worn or mutilated or'should it be in any way inaccurate as a gaging means, the micrometer will form, in connection with the other parts, an accurate gaging means.

n 1g. 4 a micrometer 33 of commonforma so-called depth gageis shown. This micrometers member 34 with the lock nut 35 may be unscrewed from the base 36 being concentric with the opening 30 leading therefrom. A set screw 38. may be turned to lock the' micrometer in position, especlally where its member 34 is not threaded.

Lock nuts 39 may be turned to 'lock the' bolts 20 in adjusted position; and'a screw 45 threaded in the rear part of the frame 1 frame resting on a suitable support.

It will beseen that the bolt- 7 may be moved in the slot 5 and the sine bar 3 swung to adjust the same to the desired position as determined b the method or methods lained. The nut 14 is now v work piece.

turned to clamp the sine bar in such adjust- -may be accurately tested, and when the micrometer 33 is applied, any variations from .the proper gage may. be measured.

The invention being intended to be ointed out in the claims, is not to be limite to or by details of construction shown or described.

I claim:

1. In a device of the character described; so a table adapted to support a work piece; a sine bar adapted to gagingly contact the work piece oppositely to the table and be ing mounted swingably on an'axis extending in a direction transverse to the table; means for holding the sine bar in swung position and in spaced relation to the table; the sine bar having portions extending transversely to the plane of its movement and in determined spaced relation to its work-contacting surface, and the table having an under surface in determined spaced relation to its work-supporting surface.

2. In a device of the character described; a table member adapted to support a work piece; a sine bar member adapted to gagingly contact the work piece oppositely to the table member and being mounted swingably on an axis extending in a direction transverse to the table member; means for 10', securing the sine bar member in swung position and in spaced relation to the table member; a micrometer carried by one of said members in such position that its work contacting stem is movable perpendicularly 10.,

v the table member and being mounted swingably on an axis extending in a direction transverse to the table member; means for holding the sine bar member in swung position and in spaced relation to the table member; one of said members having an opening extending 'therethrough perpendicularly to its work contacting surface; a micrometer removably carriedby said member in such position that its work contacting stem is movable in said opening perpendicularly to said members work engaging 7 surface and into gaging contact with the 4. In a device of the character described; a frame having a slot; a table carried by the frame and adapted to support a work piece;

a bolt extending through the slot and slidable and non-rotatable therein and having a threaded portion; a sine bar adapted to gagingly contact the work piece oppositely 5 to the table and swingubly mounted on'the bolt; 4 nut turnable on the threaded portion of the bolt and adapted to clamp the sine bar on the frame in swung position and in spaced relation to the table.

In testimony whereof I have hereunto set 10 my hand at Grand Rapids, Michigan, this 10th day of May, 1919.

FREDERICK E. VOIGT. 

